/Engine/Source/Runtime/Engine/Classes/Engine/EngineTypes.h
Rules for attaching components
struct FAttachmentTransformRules
bool
bWeldSimulatedBodies
Whether to weld simulated bodies together when attaching
EAttachmentRule
LocationRule
The rule to apply to location when attaching
EAttachmentRule
RotationRule
The rule to apply to rotation when attaching
EAttachmentRule
ScaleRule
The rule to apply to scale when attaching